the assad regime, we have been increasingly concerned having non-escalation of violence through conventional means and it might be considering the use of chemical weapons and as the president has said, any use or proliferation of chemical weapons by the syrian regime would cross a red line for the united states. the regime must know the world is watching. and that they will be held accountable by the united states and international community if they use chemical weapons or fail to meet obligations to secure them. we continue to consult actively with syria's neighbors, our friends in the international community to } our common concerns about the security of these weapons and the syrian government to. >> we believe that they are part of the saudi regime. the regime has lost all legitimacy to lead syria and we are concerned about the chemical weapons stockpile, which have increased. >> is the type of movement that we are seeing right seeing right now, and as i crossed the red line? >> i think the president makes clear that the use of weapons was a red line. we are monitoring the situation close